This is a known issue, mentioned in the Xenial release notes: "14.04 LTS to LTS upgrades will be enabled with the 16.04.1 LTS point release, in approximately 3 months time." I imagine there is a main bug somewhere but I can't find it.
This is a known issue, mentioned in the Xenial release notes: "14.04 LTS to LTS upgrades will be enabled with the 16.04.1 LTS point release, in approximately 3 months time." I imagine there is a main bug somewhere but I can't find it.